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Adding and subtracting Decimals

Adding Decimals

http://duvandermath.com/AddSubFracRev2.jpg



When you add and decimals compare the answer to the estimate.If the answer is near the estimate the answer is resonable.

Always line the decimals up.

Subtracting Decimals

Sometimes it is necessary to annex zeroes before you subtract.



adding decimals


external image help1.gif


SUBTRACTING DECIMALS


external image help3.gif
my awsome links


http://mathforum.org/library/drmath/drmath.middle.html


http://www.homeschoolmath.net/teaching/d/add-hundredths-b.php



http://www.youtube.com/watch?v=0mOH-qNGM7M























































































































































































































































































































































































































http://duvandermath.com/AddSubFracRev2.jpg










http://duvandermath.com/AddSubFracRev2.jpg